I'm having trouble solving these problems for my math assignment

1) 3x-1=4x+8-x

2) - 10+5x=7x-4

3) 28-6x+4=30-3x

4) 4x-1=9x-1=5x

A worker is hired for $80 a day on the condition that if business is slow, the worker will only receive half pay. At the end of 20 days, the worker receives $1,320. On how many days was business slow?

The ratio of a rectangle's length to its width is 2:1. if the length is 14cm long what is the width

A survey was sent out to 650 people. in total 3/5 of people returned the survey. how many people returned the survey

Mrs. Jones surveys her class of 20 students about their siblings. In the class, 15 have a brother, 16 have a sister, and 12 have both a brother and a sister. What is the probability that a student has a brother OR a sister?

41 a) Find the nth term of the arithmetic sequence 1, 11, 21, 31, 41, ... b) Find the 100th term c) Is 205 in the sequence? How do you know? d) Which term in the sequence is 161? d

F (x) = (3x+1) (x^-3x-6)

Form a polynomial whose real zeros and degree are given. zeros: negative 2-2 , negative 1-1 ,44 , 55 ; degree: 4 type a polynomial with integer coefficients and a leading coefficient of 1.

Find a vector parallel to the line of intersection of the planes given by 2x + z = 5 and x + y - z = 4

The diagonals of a parallelogram are congruent. Which could be the parallelogram? trapezoid rectangle kite rhombus

Solve this system using substitution then write your answer as an ordered pair (x, y) X-5y=4 and Y=2x+14